Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Tunable multi-tone multi-band high-frequency synthesizer for space-borne beacon transmitter for atmospheric radio wave propagation studies

a radio wave propagation study and high-frequency synthesizer technology, applied in the field of multi-tone multi-band millimeterwave synthesizers, can solve the problems of high cost, low cost, heavy, etc., and achieve the effects of low cost, low cost, and increased output power

Active Publication Date: 2020-02-18
UNITED STATES GOVERNMENT ADMINISTRATOR OF NASA
View PDF22 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patent describes an apparatus for generating millimeter-wave beacon signals using a frequency comb generator (FCG) that is driven by a low temperature superconducting extended Josephson tunnel junction (JJJ) based microwave electronics. The output of the JJJ is a train or equally spaced comb-like voltage pulses that contains hundreds of harmonics or tones of the original driving sinusoidal magnetic field frequency. A tunable bandpass filter is used to filter out the desired frequencies, and a tunable millimeter-wave power amplifier amplifies them to the desired level. This approach is compact, lightweight, and low cost compared to conventional microwave beacon transmitters. The natural cold environment of space can cool the superconducting extended Josephson tunnel junction array, reducing DC power consumption and increasing system efficiency. The technical effect of this patent is to provide a compact, lightweight, and low-cost solution for generating millimeter-wave beacon signals.

Problems solved by technology

Compared to conventional microwave beacon transmitters, which are bulky and expensive, the above approach is very compact, lightweight, and low cost.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Tunable multi-tone multi-band high-frequency synthesizer for space-borne beacon transmitter for atmospheric radio wave propagation studies
  • Tunable multi-tone multi-band high-frequency synthesizer for space-borne beacon transmitter for atmospheric radio wave propagation studies
  • Tunable multi-tone multi-band high-frequency synthesizer for space-borne beacon transmitter for atmospheric radio wave propagation studies

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028]FIG. 1 is a schematic 100 illustrating a conventional fixed single frequency satellite borne microwave beacon transmitter configuration. The conventional beacon transmitter configuration may include a microwave signal source 101 configured to generate a fixed single frequency signal. Because the frequency spectrum is divided into bands, signals operating in 18.0 to 26.5 Gigahertz (GHz) are known as K-band signals, signals operating in 33-50 GHz are known as Q-band signals, signals operating in 60-90 GHz are known as E-band signals. The generation of the un-modulated or continuous wave (CW) fixed single frequency microwave carrier takes place in the phased locked loop (PLL) stabilized dielectric resonator oscillator (DRO) 104, which derives its input reference from a highly stable temperature compensated crystal oscillator (TCXO) 102. A chain of monolithic microwave integrated circuit (MMIC) based amplifiers consisting of a pre amp, driver amp and a balanced power amp (PA) 106 ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A multi-tone multi-band tunable millimeter-wave synthesizer is provided. In some embodiments, the multi-tone multi-band tunable millimeter-wave synthesizer is configured to simultaneously generate multiple frequency tones for space-borne beacon transmitter for atmospheric radio wave propagation studies. The apparatus includes a comb generator, which puts out evenly spaced harmonic frequencies of the input signal, which are coherent, tunable, and the number of tones or combs is scalable over a wide range of frequencies. These harmonics or tones are amplified to the power level needed for radio wave propagation studies. The amplified signals are transmitted as beacon signals from a satellite to a ground receiving station.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application claims the benefit of U.S. Provisional Patent Application No. 62 / 068,163, filed on Oct. 24, 2014, the subject matter of which is hereby incorporated by reference in its entirety.ORIGIN OF THE INVENTION[0002]The invention described herein was made by employees of the United States Government and may be manufactured and used by or for the Government for Government purposes without the payment of any royalties thereon or therefore.FIELD[0003]The present invention relates to a multi-tone multi-band synthesizer and, more particularly, to a tunable multi-tone multi-band millimeter-wave synthesizer for application in a space-borne beacon transmitter for investigating radio wave propagation through the Earth's atmosphere.BACKGROUND[0004]Because of increasing congestion in the currently used microwave spectrum (3-30 GHz) for space-to-Earth communications there is a study underway to develop the multi-GHz bandwidth available at mill...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(United States)
IPC IPC(8): G01S1/04H03L7/20
CPCG01S1/042H03L7/20H03F3/189H03F3/24H03F3/68H03F2200/111H03F2200/294H03F2200/451H04B1/0053
Inventor SIMONS, RAINEEWINTUCKY, EDWIN
Owner UNITED STATES GOVERNMENT ADMINISTRATOR OF NASA
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com